The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 1997
Filed:
Sep. 28, 1994
Antonio Ramos Fernandez, Madrid, ES;
Pedro T Sanz Sanchez, Madrid, ES;
Consejo Superior Investigaciones Cientificas, Madrid, ES;
Abstract
The object of the disclosed system is the fast switching of high voltage and short duration pulses on loads which requires high instantaneous intensities, in order to provide said pulses in both directions; the system is capable in switching narrow hand signals, and therefore long duration signals. The system is based on a very lower series impedance switching channel which is comprised of two high voltage capacitors (C.sub.1) in series with two rectifying groups (GR.sub.1 and GR.sub.2) connected in opposition and whose conduction status is activated by forced injection, through said groups of a direct current controlled by a reactive network in series with a conventional low voltage unidirectional switch (CBT), thereby providing for its logical control (SL) from digital circuits TTL or CMOS. This system applies more particularly and immediately to wide band units which operates with high frequency radiations, particularly of ultrasonic type, and in fields such as diagnosis and non-invasive medical treatment and non-destructive tests of aeronautical and nuclear structures.